/*
 * @Author: lsmi
 * @Date: 2021-11-06 19:42:08
 * @LastEditors: lsmi
 * @LastEditTime: 2021-11-06 19:42:08
 * @FilePath: \base-typescript\src\A.ts
 */
namespace A {
  export namespace B {
    export let d = 3
  }
}